Brake for vehicles.



Nq.veo,'85a.- PATENTED MAY24,1904,.

' 0.'L. DILWOETE..

BRAKE EOE VEHICLES.

' .APPLIOATION FILED JAN. 20, 1904. N0 IODEL.

THE Nonms FzTzns :o Hom uw wAswNuoN D c UNITED STATES Patented May 24, 1904.

OTTO L. DILWORTH, OF NORWICH, CONNECTICUT.

BRAKE Fon VEHICLES.

' SPECIFICATION forming part of Letters Patent N0. 760,853, dated May 24, 1904.

Application filed January 20, 1904I Serial No. 189,844. (No model.) i

To all whom t may concern:

Be it known that I, OTTO L. DILWORTH, a citizen of the United States,residing at Norwich, in the county of New London and State of Connecticut, have invented a new and useful Improvement in Brakes for Vehicles, of

` which the following is a specication.

- This invention has lfor its object the production of a simple, powerful, and reasonably- 'cheap form of brake and devices for operating the same, my improved form of brake being specially suitable for use with automobiles and the like vehicles.

My improvements are illustrated in and by the accompanying sheet of drawings, in

Figure l is an'outline side view of an auto-- rear axle of the vehicle, as seen in Fig. 1 of the said drawings. Inclosing the disk a is a strap preferably of spring-steel, whose ends are secured to a nut c, that is mounted in a bracket d. Between` the disk a and the strap I) are interposed brake-shoes e ee', that are riveted or otherwise secured to the said strap, and upon that side of disk c adjacent to the nut c is a similar shoe c2, that is slottedto receive a T-shaped head on the end of a screw g, that coacts with the saidnut, as will be best understood by reference to Fig. 2. `Preferably the nut c is square or otherwise angular in cross-section, so that it cannot rotate in the bracket 0l. When the screw is rotated within the nut c, it will be obvious that the y shoe @2v/ill yfirst be forced into frictional engagement with the disk a, and continued rotation of the screw will slide the nut longitudinally in its (bracket) support, thus causing engage either of the notches in disk L. vRod v m serves to clutch together the screw-rod g and lever-arm 7c, so thatrocking motion given to the saidlever-arm will be imparted to the screw-shaft to set up the brake-shoes in the manner above described, and I find by practical experiment that with a very coarse screwthread only aslight rotary movement of the screw-shaft is necessary to set up the brakeshoes suiiiciently.

, Having thus described my invention, I claiml 1. In combination, with a disk, a strap inclosing said disk, brake-shoes between the disk and strap, and means consisting of a screw and nut lsubstantially as set forth, for operating the said strap to force the brake-shoes into' engagement with the said disk.

2. In combination with a disk, a nut, a'strap secured to said nut and inclosing the said disk, brake-shoes interposed between the said-strap and disk, a screw cooperating with the nut, and a brake-shoe mounted upon the end of said screw, all being substantially as described.

In testimony whereof I have signed my name to this specificationin the presence of two subscribing witnesses.

OTTO L. DILWORTH.

Witnesses:

FRANK H. ALLEN, MAY F. RrrCHIE. 

